Surely the field of view is too narrow.
I thought most night spotting of mammals was done with wider-angle field of view, ie., spotlight an area after locating scat or fur samples, and look with the naked eye?

Thinking of getting rid of the little guys?
From Wikipedia; They may also serve as a primary reservoir for Coxiella burnetii, infection is transmitted among them by ticks. These are then transmitted to domestic animals (cattle, sheep and poultry). The infected domestic animals shed them in urine, faeces, and placental products. It is transmitted to humans causing Q fever by inhalation of aerosols of these materials. Main symptoms may be pneumonia and/or hepatitis.

I was actually thinking of wandering around North Head as there is a resident bandicoot population there. Having never used night vision goggles, I have no idea what they are like to work with. Could I, like, climb with them?

As Wollemi pointed out, bandicutes are supposively living in the disused railway line that runs along the hawthorne canal. The railway line is in the process of being rebuilt as a light rail service (sadly without a complementary bike path :-( )
Not sure what effect this will have on the bandicoot population long term. But what is for sure is that the area around the light rail will be rezoned for even higher density living.

The field of view is pretty small and the price seems too cheap. I used to work in an outdoor store that sold night vision monoculars (Mitchells on Elizabeth St.) and we tested those out upstairs one night with the lights off. Of the three models available the first two would only show you silhouettes of people and things with minimal detail; these where known to be “good” in comparison to other brands but basically still sucked and started at $500 bucks. The top of the line model for $1100ish was the real deal, huge field of view, deep focus and fantastic detail, perfect for viewing animals at night; think night vision in COD modern warfare, but anything like that is going to be big bickies as I believe they have a small battery operated particle accelerator thing in them (photons into electrons then electrons sped up, I used to know). In short these seem like they will be akin to the former models and not the latter; I think your looking at $1000 plus for what you want.